San Mateo, Spanish for Saint Matthew, is the name of several places:

• San Mateo (Cantabria), Spain

• Canary Islands
  • Vega de San Mateo, a municipality on the island of Gran Canaria in the province of Las Palmas
• Costa Rica
  • San Mateo de Alajuela, a city and district in the canton of San Mateo in the province of Alajuela
  • San Mateo Canton, a canton in the province of Alajuela
• Guatemala
  • San Mateo, Guatemala
• Peru
  • San Mateo, Lima Department
• Philippines
  • San Mateo, Rizal
  • San Mateo, Isabela
• United States
  • San Mateo County, California
  • San Mateo, California
• Venezuela
  • San Mateo, Anzoátegui
  • San Mateo, Aragua

San Mateo may also refer to:

• San Mateo (water), bottled water sold in Peru

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